UAM Publications


2014

A. Bellogín, P. Castells, I. Cantador. Neighbor Selection and Weighting in User-Based Collaborative Filtering: A Performance Prediction Approach. ACM Transactions on the Web 8(2), March 2014.

(BibTeX | Tags: recommender systems, collaborative filtering, performance prediction, information retrieval)

P. G. Campos, F. Díez, I. Cantador. Time-Aware Recommender Systems: A Comprehensive Survey and Analysis of Existing Evaluation Protocols. User Modeling and User-Adapted Interaction, Special Issue on Context-Aware Recommender Systems 24(1-2), February 2014, pp. 67-119.

(BibTeX | Tags: recommender systems, time-aware, context-aware, evaluation methodologies, survey)

2013

A. Bellogín, J. Wang, P. Castells. Bridging Memory-Based Collaborative Filtering and Text Retrieval. Information Retrieval 16(6), December 2013, pp. 697-724.

(BibTeX | Tags: recommender systems, collaborative filtering, information retrieval models, information retrieval)

A. Bellogín, J. Parapar, P. Castells. Probabilistic Collaborative Filtering with Negative Cross Entropy. 7th ACM Conference on Recommender Systems (RecSys 2013). Hong Kong, China, October 2013, pp. 387-390.

(BibTeX | Tags: recommender systems, collaborative filtering, information retrieval models, information retrieval)

P. G. Campos, I. Fernández-Tobías, I. Cantador, F. Díez. Context-Aware Movie Recommendations: An Empirical Comparison of Pre-Filtering, Post-Filtering and Contextual Modeling Approaches. 14th International Conference on Electronic Commerce and Web Technologies (EC-Web 2013). August 2013, pp. 137-149.

(BibTeX | Tags: recommender systems, collaborative filtering, context, time)

J. Parapar, A. Bellogín, P. Castells, A. Barreiro. Relevance-Based Language Modelling for Recommender Systems. Information Processing & Management 49(4), July 2013.

(BibTeX | Tags: recommender systems, collaborative filtering, information retrieval models, information retrieval)

S. Vargas, R. L. T. Santos, C. Macdonald, I. Ounis. Selecting Effective Expansion Terms for Diversity. 10th International Conference in the RIAO series (OAIR 2013). Lisbon, Portugal, May 2013.
Slides

(BibTeX | Tags: diversity, information retrieval, query expansion, relevance feedback, trec)

S. Vargas, P. Castells. Exploiting the Diversity of User Preferences for Recommendation. 10th International Conference in the RIAO series (OAIR 2013). Lisbon, Portugal, May 2013.
Slides

(BibTeX | Tags: diversity, recommender systems, web services, user profile)

A. Bellogín, I. Cantador, P. Castells, F. Díez. Exploiting Social Networks in Recommendation: a Multi-Domain Comparison. 13th Dutch-Belgian Information Retrieval Workshop (DIR 2013). Delft, Netherlands, April 2013.

(BibTeX | Tags: recommender systems, evaluation, collaborative filtering, social networks, context)

A. Bellogín, I. Cantador, F. Díez, P. Castells, E. Chavarriaga. An Empirical Comparison of Social, Collaborative Filtering, and Hybrid Recommenders. ACM Transactions on Intelligent Systems and Technology 4(1), Special Issue on Context-Aware Movie Recommendations, February 2013.

(BibTeX | Tags: recommender systems, social networks, hybrid recommendation)

A. Bellogín, I. Cantador, P. Castells. A Comparative Study of Heterogeneous Item Recommendations in Social Systems. Information Sciences 221(1), February 2013, pp. 142-169.

(BibTeX | Tags: novelty, diversity, recommender systems, evaluation, collaborative filtering, social networks)

2012

P. G. Campos, A. Bellogín, F. Díez, I. Cantador. Time Feature Selection for Identifying Active Household Members. 21st ACM International Conference on Information and Knowledge Management (CIKM 2012). Maui, Hawaii, USA, October 2012, pp. 2311-2314.

(BibTeX | Tags: context, time, household member identification, time features, feature selection, recommender sistems)

A. Bellogín, J. Parapar. Using Graph Partitioning Techniques for Neighbour Selection in User-Based Collaborative Filtering. 6th ACM Conference on Recommender Systems (RecSys 2012). Dublin, Ireland, September 2012.
Poster

(BibTeX | Tags: recommender systems, collaborative filtering, clustering)

D. Vallet, P. Castells. Personalized Diversification of Search Results. 35th Annual International ACM SIGIR Conference on Research and Development in Information Retrieval (SIGIR 2012). Portland, OR, USA, August 2012, pp. 841-850.

(BibTeX | Tags: diversity, information retrieval models, personalization, information retrieval)

S. Vargas, P. Castells, D. Vallet. Explicit Relevance Models in Intent-Oriented Information Retrieval Diversification. 35th Annual International ACM SIGIR Conference on Research and Development in Information Retrieval (SIGIR 2012). Portland, OR, USA, August 2012, pp. 75-84.
Slides

(BibTeX | Tags: diversity, information retrieval models, personalization, information retrieval)

S. Vargas, P. Castells, D. Vallet. On the Suitability of Intent Spaces for IR Diversification. International Workshop on Diversity in Document Retrieval (DDR 2012) at the 5th ACM International Conference on Web Search and Data Mining (WSDM 2012). Seattle, Washington, USA, February 2012.

(BibTeX | Tags: diversity, evaluation, query aspect, information retrieval)

S. Santini. Regular languages with variables on graphs. Information and Computation 211, January 2012, pp. 1-28.

(BibTeX | Tags: graph search, regular expressions)

I. Cantador, P. Castells. Group Recommender Systems: New Perspectives in the Social Web. In J. J. Pazos Arias, A. Fernández Vilas, R. P. Díaz Redondo (Eds.): Recommender Systems for the Social Web. Springer Verlag, Intelligent Systems Reference Library, Vol. 32, 2012, ISBN: 978-3-642-25693-6.

(BibTeX | Tags: recommender systems, social web, group recommendation)

2011

S. Vargas, P. Castells. Rank and Relevance in Novelty and Diversity Metrics for Recommender Systems. 5th ACM Conference on Recommender Systems (RecSys 2011). Chicago, Illinois, October 2011, pp. 109-116.
Slides

(BibTeX | Tags: novelty, diversity, recommender systems, metrics, evaluation)

A. Bellogín, P. Castells, I. Cantador. Precision-Based Evaluation of Recommender Systems: An Algorithmic Comparison. 5th ACM Conference on Recommender Systems (RecSys 2011). Chicago, Illinois, October 2011, pp. 333-336.

(BibTeX | Tags: recommender systems, metrics, evaluation, experimental methodology)

A. Bellogín, J. Wang, P. Castells. Structured Collaborative Filtering. 20th ACM Conference on Information and Knowledge Management (CIKM 2011), Poster Session. Glasgow, UK, October 2011, pp. 2257-2260.

(BibTeX | Tags: recommender systems, collaborative filtering, information retrieval models, information retrieval)

A. Bellogín, P. Castells, I. Cantador. Predicting the Performance of Recommender Systems: An Information Theoretic Approach. 3rd International Conference on the Theory of Information Retrieval (ICTIR 2011) - Springer Verlag Lecture Notes in Computer Science, Vol. 6931. Bertinoro, Italy, September 2011, ISBN: 978-3-642-23317-3, pp. 27-39.

(BibTeX | Tags: recommender systems, performance prediction, information retrieval)

S. Vargas, P. Castells, D. Vallet. Intent-Oriented Diversity in Recommender Systems. 34th Annual International ACM SIGIR Conference on Research and Development in Information Retrieval (SIGIR 2011), Poster Session. Beijing, China, July 2011, pp. 1211-1212.
Poster

(BibTeX | Tags: diversity, recommender systems, metrics, evaluation, information retrieval)

D. Vallet, P. Castells. On Diversifying and Personalizing Web Search. 34th Annual International ACM SIGIR Conference on Research and Development in Information Retrieval (SIGIR 2011), Poster Session. Beijing, China, July 2011, pp. 1157-1158.

(BibTeX | Tags: diversity, personalization, web search, information retrieval)

A. Bellogín, P. Castells, I. Cantador. Self-adjusting Hybrid Recommenders Based on Social Network Analysis. 34th Annual International ACM SIGIR Conference on Research and Development in Information Retrieval (SIGIR 2011), Poster Session. Beijing, China, July 2011, pp. 1147-1148.

(BibTeX | Tags: recommender systems, performance prediction, social networks, hybrid recommendation)

D. Vallet, M. Halvey, J. Jose, P. Castells. Applying Soft Links to Diversify Video Recommendations. 9th International Workshop on Content-Based Multimedia Indexing (CBMI 2011). Madrid, Spain, June 2011.

(BibTeX | Tags: diversity, soft links, video recommendation, information retrieval, multimedia retrieval)

P. Castells, S. Vargas, J. Wang. Novelty and Diversity Metrics for Recommender Systems: Choice, Discovery and Relevance. International Workshop on Diversity in Document Retrieval (DDR 2011) at the 33rd European Conference on Information Retrieval (ECIR 2011). Dublin, Ireland, April 2011.

(BibTeX | Tags: novelty, diversity, recommender systems, metrics, evaluation, information retrieval)

A. Bellogín, J. Wang, P. Castells. Text Retrieval Methods for Item Ranking in Collaborative Filtering. 33rd European Conference on Information Retrieval (ECIR 2011), Springer Verlag Lecture Notes in Computer Science. Dublin, Ireland, April 2011, ISBN: 978-3642201608, pp. 301-306.

(BibTeX | Tags: collaborative filtering, information retrieval models, information retrieval)

D. Vallet, F. Hopfgartner, J. M. Jose, P. Castells. Effects of Usage-Based Feedback on Video Retrieval: A Simulation-Based Study. ACM Transactions on Information Systems 29(2), April 2011.

(BibTeX | Tags: implicit feedback, recommendation, multimedia retrieval)

2010

F. Díez, J. E. Chavarriaga, P. G. Campos, A. Bellogín. Movie Recommendations Based on Explicit and Implicit Features Extracted from the Filmtipset Dataset. Workshop on Context-Aware Movie Recommendation (CAMRa 2010), at the 4th ACM Conference on Recommender Systems (RecSys 2010). Barcelona, Spain, September 2010, pp. 42-52.

(BibTeX | Tags: recommender systems, context)

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